CN106483552B - Detection method based on plateform system - Google Patents
Detection method based on plateform system Download PDFInfo
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- CN106483552B CN106483552B CN201610963894.3A CN201610963894A CN106483552B CN 106483552 B CN106483552 B CN 106483552B CN 201610963894 A CN201610963894 A CN 201610963894A CN 106483552 B CN106483552 B CN 106483552B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T7/00—Details of radiation-measuring instruments
- G01T7/005—Details of radiation-measuring instruments calibration techniques
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Abstract
It include: that X-ray machine platform is arranged on the first guide rail of system backplane the present embodiments relate to a kind of detection method based on plateform system；Detector platform is arranged on the second guide rail；Filtering is set up and is placed between X-ray machine platform and detector platform；Driving X-ray machine platform moves to operating position on the first guide rail；Also, driving detector platform moves to operating position on the second guide rail；Adjust X-ray machine platform position, adjustment filtering frame, make X-ray machine X-ray Exit positions, filtering frame on grafting additional filterings piece center and detector reception X-ray position on the same line；X-ray machine generates primary x-ray beam；Primary x-ray beam passes through additional filterings piece filtration treatment, filters out to the ray lower than first threshold energy；Detector receives X-ray beam after filtering, and photon deposition generates electric signal in detector crystal, through electronics device, obtains gamma-spectrometric data；Adjust the tube voltage radiation quality different with additional filtering acquisition.
Description
Technical field
The present invention relates to a kind of Radiation monitoring technical field more particularly to a kind of detection methods based on plateform system.
Background technique
From atom bomb test success, the application of nuclear energy is widely used, and is related to military, medical treatment, the energy etc..Cause
Artificial radioactivity improves in environment, and the radiation protection of the staff of contact ionization radiation and safety are also increasingly paid close attention to.
Therefore, environment nuclear radiation monitoring is imperative.Environment nuclear radiation monitoring refers to radiation already present in nuclear facilities ambient enviroment
Horizontal, radionuclide in surrounding medium content, and carried out for environmental parameter needed for evaluation public dose, social condition
Monitoring.
Plateform system is used for calibrating, calibration and the detection of radiac instruments, is usually used in the fields such as industrial nondestructive testing.
Accurate detection is as a result, it is desirable to calibrate plateform system in order to obtain, but the detection side of existing plateform system
The operating process of method is complicated, is difficult just to realize the sight alignment of radioactive source, additional filterings piece and instrument by simple operations, especially
It is to be placed in radioactive source compared under long guideway up stroke variable condition, is even more not easy to realize, is unable to reach plateform system requirement
Precision, thus influence whether detection effect and accuracy.
Summary of the invention
The purpose of the present invention is in view of the drawbacks of the prior art, providing a kind of detection method based on plateform system, operate
Simply, plateform system permissible accuracy can be reached, to improve the accuracy of measurement result.
To achieve the above object, the present invention provides a kind of detection methods based on plateform system, described to be based on platform system
The detection method of system includes:
X-ray machine platform is arranged on the first guide rail of the system backplane of plateform system；Wherein, it is set up on X-ray machine platform
There is X-ray machine；
Detector platform is arranged on the second guide rail of system backplane；Wherein, detector is provided on detector platform；
Filtering is set up and is placed between X-ray machine platform and detector platform, filters and is plugged with additional filterings piece on frame；
Control first motor driving X-ray machine platform moves to operating position on the first guide rail；Also, control the second motor
Driving detector platform moves to operating position on the second guide rail；
Adjust X-ray machine platform position, adjustment filtering frame, make X-ray machine X-ray Exit positions, filtering frame on grafting it is attached
Add filter plate center and the reception X-ray position of detector on the same line；
X-ray machine generates primary x-ray beam；
Primary x-ray beam passes through additional filterings piece filtration treatment, filters out to the ray lower than first threshold energy；
Detector receives X-ray beam after filtering, and photon deposition generates telecommunications in detector crystal, through electronics device
Number, obtain gamma-spectrometric data；Wherein, the gamma-spectrometric data is the corresponding relationship of photon energy and number of photons；
Adjust the tube voltage radiation quality different with additional filtering acquisition；Wherein, the radiation quality includes average energy, spectrum point
Resolution, the first half-value layer and homogeneity coefficient.
Preferably, on the first guide rail of the system backplane that X-ray machine platform is provided in the plateform system it
Before, the method also includes:
The system backplane is placed in shielded box, cosmic ray is shielded by the shielded box.
Preferably, the position for adjusting the X-ray machine platform specifically:
The laser calibrator on the X-ray machine platform is opened, laser is emitted；Wherein, first X-ray beam swashs with described
The exit direction of light is parallel；
The lifting device for adjusting the X-ray machine platform makes detector described in the laser directive of the laser calibrator transmitting
The laser pickoff of platform；
The pitching platform and turntable for adjusting the X-ray machine platform are incident upon the laser of the laser calibrator transmitting described
The center of laser pickoff.
It is further preferred that the adjustment filtering frame specifically:
The filtering frame is rotated, filters frame described in the laser directive for making the laser calibrator transmitting；Wherein, the filtering
Frame includes support rod and interconnecting piece；
Also, the height for adjusting the support rod, rotates the angle of the support rod, the laser for emitting laser calibrator
The predetermined position that frame is filtered described in directive makes X-ray Exit positions, the additional filterings for filtering grafting on frame of the X-ray machine
Piece center and the reception X-ray position of the detector are on the same line.
It is further preferred that the pitching platform includes the first table top, the second table top and pitch regulation bolt；The First
Face is set up in the top of second table top by the pitch regulation bolt；
The pitching platform for adjusting X-ray machine platform specifically: rotate the pitch regulation bolt, make the first table top root
Corresponding inclination is generated according to pitch regulation bolt rotation.
It is further preferred that the turntable includes rotary drive motor, fixed part and rotating disk；The rotating disk setting
In on the fixed part；
The turntable for adjusting X-ray machine platform specifically: the rotary drive motor receives rotating signal, described in driving
Rotating disk rotates on the fixed part.
Preferably, first guide rail includes fixed platform, two tracks, the first sliding block and lead screw；Two tracks
It is arranged in parallel in the fixed platform；The lead screw is set among two tracks, and is parallel to two tracks；
First sliding block is set on the lead screw and is connected with the bottom of the X-ray machine platform；
Control first motor driving X-ray machine platform moves to operating position on the first guide rail specifically: described the
One motor receives the first displacement signal, and the lead screw is driven to rotate, and drives first sliding block along the guide screw movement to work
Position.
Preferably, described to adjust additional filtering specifically: replacement additional filterings piece.
Preferably, the adjusting tube voltage specifically: change the intensity and average energy of the primary x-ray beam.
Detection method provided in an embodiment of the present invention based on plateform system, it is easy to operate, plateform system can be reached and wanted
The precision asked, to improve the accuracy of measurement result.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of plateform system provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of X-ray machine platform provided in an embodiment of the present invention；
Fig. 3 is the detection method flow chart provided in an embodiment of the present invention based on plateform system.
Specific embodiment
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Detection method provided in an embodiment of the present invention based on plateform system, is implemented in plateform system, the platform system
System includes system backplane, X-ray machine platform, radiation source platform, detector platform and filtering frame, be can be realized by shirtsleeve operation
Position correction between X-ray machine platform, detector platform in plateform system and filtering frame.
The detection method that embodiment provides in order to better understand the present invention, firstly, the structure to plateform system is situated between
It continues, as shown in Figure 1, plateform system includes: system backplane 1, X-ray machine platform 2, radiation source platform 3, detector platform 4 and filtering
Frame 5.
System backplane 1 has the first guide rail 11, the second guide rail 12 and third guide rail 13, the length of third guide rail 13 and first
The equal length of guide rail 11, and third guide rail 13 is parallel to the setting of the first guide rail 11；Second guide rail 12 is perpendicular to the first guide rail 11
With third guide rail 13, and one end of the first guide rail 11 and third guide rail 13 is set；The length of second guide rail 12 is greater than first and leads
Spacing between rail 11 and third guide rail 13.As shown in Fig. 2, the first guide rail 11 includes 111, two articles of tracks 112 of fixed platform, the
One sliding block (not shown) and lead screw 113；Two tracks 112 are installed in parallel in the upper of fixed platform 111；Lead screw 113 is located at
Among two tracks 112, and two tracks 112 are parallel to, are driven and rotated by first motor 14；First sliding block is arranged in lead screw
On 113, moved with the rotation of lead screw 113 along lead screw 113.Wherein, 13 structure of the first guide rail 11, the second guide rail 12 and third guide rail
Identical, the second guide rail 12 is driven by the second motor (not shown), and third guide rail is driven by third motor (not shown).
The structure of X-ray machine platform 2 is specific as shown in Fig. 2, including first movement platform 21 and X-ray machine 22, first movement is flat
Platform 21 is slidably installed on the first guide rail 11, is moved along 11 direction of the first guide rail；X-ray machine 22 is arranged on first movement platform 21, produces
The X-ray beam of raw horizontal exit.
The bottom surface both side of first base 211, which is equipped with two, ranked second sliding block 2111, and every row can set that there are two the second sliding blocks
2111, described two, which ranked second the cunning of sliding block 2111, is slidably installed in respectively on two tracks 112 of the first guide rail 11, and two ranked second cunning
The distance between block 2111 is equal with the distance between two tracks 112；The bottom surface of first base 211 and the fixed company of the first sliding block
It connects.When X-ray machine platform 2 needs to adjust position along 11 direction of the first guide rail, 113 turns of lead screw can be driven by first motor 14
It is dynamic, drive the first sliding block to move along lead screw 113, to realize that first base 211 is moved along the first guide rail 11.
Sliding rail 212 is mounted in first base 211, vertical with the direction of the first guide rail 11.
Second base 213, parallel first base 211 are simultaneously slidably installed on sliding rail 212, are driven by sliding motor 15, along sliding rail
The movement of 212 directions, i.e., move along vertical first guide rail, 11 direction；Multiple first fixed columns 2131 are provided in second base 213,
First fixed column 2131 is cylindrical type, and multiple first fixed columns 2131 are separately positioned on the two sides of second base 213.
Lifting device 214 is arranged in second base 213；Lifting device 214 includes lifting driving motor 2141, lifting
Drive rod 2142 and hoistable platform 2143；Hoistable platform 2143 has the first threaded hole；Specifically, the first threaded hole is located at lifting
The center of platform 2143, lifting drive rod 2142 are arranged in hoistable platform 2143 by the first threaded hole, go up and down driving motor
2141 driving lifting drive rods 2142 rotate, and drive hoistable platform 2143 in the direction perpendicular to 213 place plane of second base
Movement.When X-ray machine platform 2 needs edge to move perpendicular to 1 place in-plane of system backplane, it can pass through and go up and down driving motor
2141 driving lifting drive rods 2142 rotate, and hoistable platform 2143 is driven to move, to realize X-ray machine platform 2 perpendicular to being
The direction movement for 1 place plane of bottom plate of uniting.It is additionally provided with multiple second fixed columns 21431 on hoistable platform 2143, multiple second
Fixed column 21431 is separately positioned on the two sides of hoistable platform 2143, moves synchronously with hoistable platform 2143.
Third pedestal 215 is erected in the first fixed column 2131, specifically, being additionally provided with multiple on hoistable platform 2143
Two through-holes, the position of the second through-hole is corresponding with the position of multiple first fixed columns 2131, and multiple first fixed columns 2131 are worn
In in multiple second through-holes, one end is fixedly connected with the upper surface of second base 213, the following table of the other end and third pedestal 215
Face is fixedly connected, thus realize the fixation between second base 213 and third pedestal 215, second base 213 and third pedestal
Distance is the length of the first fixed column 2131 between 215, and hoistable platform 2143 is by multiple first fixed columns 2131 second
It moves vertically between pedestal 213 and third pedestal 215.
Sports platform 216 is erected in the second fixed column 21431, moves synchronously with hoistable platform 2143；Specifically, third
There are multiple third through-holes, the position of multiple third through-holes is opposite with the position of multiple second fixed columns 21431 to be set on pedestal 215
It sets, multiple second fixed columns 21431 are arranged on third pedestal 215 via multiple third through-holes, one end and hoistable platform 2143
Upper surface be connected, the other end is connected with the lower surface of sports platform 216.The distance between hoistable platform 2143 and sports platform 216
It is fixed, the as length of the second fixed column 21431, when hoistable platform 2143 moves, drives on hoistable platform 2143
Multiple second fixed column, 21431 relative motions, so that sports platform 216 be made to move synchronously with hoistable platform 2143.
Again as shown in Figure 1, radiation source platform 3 includes the second mobile platform 31 and radioactive source stationary fixture 32, second is moved
Moving platform 31 is for placing radioactive source stationary fixture 32；Second mobile platform 31 is slidably installed on third guide rail 13, along third guide rail
The movement of 13 directions；Radioactive source stationary fixture 32 is arranged on the second mobile platform 31, can be used for fixing different radioactive sources, example
Such as241Am、137Cs、60Co etc., operator can according to need the suitable radioactive source of selection.Radiate the specific structure of source platform 3
It is similar with the structure of X-ray machine platform 2, no longer repeated.
Detector platform 4, including third mobile platform 41 and detector (not shown), the cunning of third mobile platform 41 are set
On the second guide rail 12, moved along 12 direction of the second guide rail；For placing detector on third mobile platform 41.Detector is used for
Receive the X-ray beam that X-ray machine platform 2 projects or the radioactive source ray that radiation source platform 3 projects.
In this example, the mobile range of X-ray machine platform 2 and radiation source platform 3 is 0~80cm；The movement of detector platform 4
Range is 0~70cm.
Further, second for carrying the first movement platform 21 of X-ray machine 22 and for carrying radioactive source is mobile flat
The structure of platform 31 is similar, includes first base 211, sliding rail 212, second base 213, lifting device 214, third pedestal 215
With sports platform 216；Third mobile platform 41 and the structure of the second mobile platform 31 for carrying detector is also similar, and difference exists
In being not provided with sliding rail on third mobile platform 41.
Frame 5 is filtered, as shown in Figure 1, including interconnecting piece 51 and support rod 52；Interconnecting piece 51 is arranged in system backplane 1 simultaneously
Between the first guide rail 11 and third guide rail 13；One end of interconnecting piece 51 and system backplane 1 are hinged；Interconnecting piece 51 can be according to need
It will be in 1 place Plane Rotation of parallel system bottom plate；One end of support rod 52 connects with the other end of interconnecting piece 51, and perpendicular to being
Bottom plate 1 of uniting is arranged, specifically, support rod 52 is connect with interconnecting piece 51 by rotating extensible member, support rod 52 can connected
360 in portion 510Rotation, can also stretch vertically on interconnecting piece 51；The other end of support rod 52 has filter fixator
521, sandwiched additional filterings piece in filter fixator 521.When being operated using X-ray machine platform 2 and detector platform 4,
Interconnecting piece 51 is rotated, so that support rod 52 be driven to rotate to first position, then support rod 52 rotary extension adjustment is subjected to, made
X-ray Exit positions, additional filterings piece center and the detector center of X-ray machine 22 are on the same line；Source platform 3 is radiated when using
When being operated with detector platform 4, the rotation of interconnecting piece 51 drives the rotation of support rod 52 to the second position, then by support rod 52 into
The adjustment of row rotary extension, makes Exit positions, additional filterings piece center and the detector center of radioactive source ray on the same line.
In order to realize that the direction that can be accurately controlled the outgoing X-ray of X-ray machine 22 and radioactive source are emitted radioactive source ray
Direction is additionally provided with pitching platform 217 on X-ray machine platform 2, is arranged on sports platform 216, and the pitching platform 217 includes First
Face, the second table top and pitch regulation bolt；Wherein, the second table top connects with sports platform, and is fixed on sports platform 216；First
Table top is set up in the top of the second table top by pitch regulation bolt；Specifically, the first table top be equipped with multiple fourth holes, the 4th
Through-hole is helicitic texture；Second table top is equipped with bolt slot identical with fourth hole quantity, and the position of bolt slot and the
Four through-holes correspond；In this example, the first table top and the second table top are rectangle, and the quantity of fourth hole is two, point
Two diagonal angles of the first table top are not set.When the exit direction of X-ray beam and radioactive source ray needs to adjust, Ke Yixuan
Turn one of pitch regulation bolt, the first table top generates corresponding inclination according to the rotation of pitch regulation bolt, make the first table top and
Corresponding change occurs for the angle between the second table top, to adjust the exit direction of X-ray beam and radioactive source ray.
Farther out due to X-ray machine platform 2, radiation the distance between source platform 3 and detector platform 4, in X-ray machine platform
2 are additionally provided with laser calibrator 218, specifically, laser calibrator 218 includes interposed unit and laser emitter, laser calibrator 218
It is mounted on the first table top, wherein laser emitter is fixed on one end of interposed unit, and the other end of interposed unit has clamping jaw, folder
Claw clip holds the edge of the first table top, makes plane where parallel first table top in the laser emitting direction of laser emitter, in this way can be with
Guarantee that the laser of laser emitter is parallel with the direction of X-ray beam and radioactive source ray.It is connect on detector platform 4 equipped with laser
Receive device (not shown), by taking X-ray machine platform 2 as an example, the installation site of laser pickoff be according to X-ray machine 22, detector and
The position setting of laser emitter, when laser pickoff receives the laser of laser transmitter projects, illustrate the X of X-ray machine
Light Exit positions, additional filterings piece center and detector center are on the same line.
In addition, for the direction of more flexible adjustment 22 exit Xray beam of X-ray machine, X-ray machine platform 2 further includes rotation
Platform 219 is arranged between the sports platform 216 and pitching platform 217, and turntable 219 includes rotary drive motor, fixed part and rotation
Turntable；Rotating disk is arranged on fixed part, and rotary drive motor driving rotating disk rotates on fixed part, drives pitching platform 217
On X-ray machine 22 rotate, to adjust the direction of X-ray beam.
Below based on above-mentioned plateform system, the detection method of the plateform system of the embodiment of the present invention is introduced, Fig. 3 is the present invention
The flow chart of the detection method for the plateform system that embodiment provides.As shown, the detection of the plateform system of the embodiment of the present invention
Method includes the following steps:
Step 110, X-ray machine platform is arranged on the first guide rail of the system backplane of plateform system.
Specifically, the bottom of the first base of X-ray machine platform and the first sliding block of the first guide rail are fixedly connected, it can
It, can also be by the way of welding, thus by X-ray machine stage+module in the first guide rail to be fixed the two with bolts and nuts
On.Wherein, X-ray machine is provided on X-ray machine platform.
Certainly prior to step 110, system backplane is placed in shielded box, shielded box preferably uses lead, cadmium, stainless
Steel, polythene material are made, and an experimental situation compared with Low background may be implemented, and shield the soft component and environment of cosmic ray
In40K、238U and232The radioactivity of each element in Th decay chain, to improve the measurement accuracy of plateform system.
Step 120, detector platform is arranged on the second guide rail of system backplane.
Specifically, the bottom of the first base of detector platform and the first sliding block of the second guide rail are fixedly connected,
The two can be fixed with bolts and nuts, can also be led by the way of welding so that detector platform is mounted on second
On rail.Wherein, detector is provided on detector platform.
Step 130, filtering is set up and is placed between X-ray machine platform and detector platform, filtered and be plugged with additional filter on frame
Wave plate.
Specifically, the interconnecting piece for filtering frame is mounted in system backplane, the two can be fixed with bolts and nuts,
Can be by the way of welding, so that filtering frame is fixed in system backplane, the installation site of interconnecting piece is flat according to X-ray machine
What the position of platform and detector platform was chosen, so that filtering frame is rotated between X-ray machine platform and detector platform.
Step 140, control first motor driving X-ray machine platform moves to operating position on the first guide rail；Also, it controls
Second motor driven detector platform moves to operating position on the second guide rail.
After X-ray machine platform, detector platform and filtering frame installation, need X-ray machine platform and detector platform tune first
It saves to operating position.Specifically, first motor receives the first displacement signal, the lead screw rotation on the first guide rail is driven, silk is driven
The first sliding block is along guide screw movement to operating position on thick stick, so that X-ray machine platform be driven to move to operating position on the first guide rail；
Then, the second motor receives second displacement signal, drives the lead screw rotation on the second guide rail, the first sliding block is along silk on drive lead screw
Thick stick moves to operating position, so that detector platform be driven to move to operating position on the second guide rail.Wherein, the first displacement letter
Number and second displacement signal can be and issued by computer control system by operator.
Step 150, the position of X-ray machine platform is adjusted, adjustment filtering frame makes the X-ray Exit positions of X-ray machine, filters on frame
The additional filterings piece center of grafting and the reception X-ray position of detector are on the same line.
Wherein, step 150 is divided into two parts and is adjusted, and first part is the position for adjusting X-ray machine platform, makes X-ray machine
X-ray Exit positions and detector reception X-ray position on the same line；Second part is adjustment filtering frame, makes X-ray machine
X-ray Exit positions and filtering frame on grafting additional filterings piece center on the same line, so that the X-ray of X-ray machine be made to be emitted
Position, filtering frame on grafting additional filterings piece center and detector reception X-ray position on the same line.
First part is described below:
Firstly, opening the laser calibrator on X-ray machine platform, emit laser；Wherein, laser calibrator is arranged in X-ray machine
On the pitching platform of platform, the exit direction of laser is identical as the direction of X-ray machine exit Xray beam.
Secondly, the lifting device of the X-ray machine platform is adjusted, the laser directive detector platform for emitting laser calibrator
Laser pickoff.
Detector platform is equipped with laser pickoff, and the position of laser pickoff is according to X-ray machine, laser calibrator and spy
What the reception X-ray position of survey device was designed.When the laser of laser calibrator outgoing penetrates the center in laser pickoff,
The reception X-ray position of the X-ray Exit positions of X-ray machine and detector is on the same line.
Specifically, lifting driving motor receives lifting driving signal, driving lifting drive rod rotation drives lifting drive rod
Upper hoistable platform is in plane motion where vertical first guide rail and sliding rail, thus the laser directive for emitting laser calibrator
The laser pickoff of detector platform.Wherein, lifting driving signal, which can be, is sent out by operator by computer control system
Out.
Then, the pitching platform and turntable for adjusting X-ray machine platform, the laser for emitting laser calibrator are incident upon laser pick-off
The center of device.
Specifically, rotary drive motor receives rotating signal, control rotating disk rotates on fixed part, from drive laser hair
Emitter rotation, wherein rotating signal, which can be, to be issued by computer control system by operator；Rotary luffing adjusts spiral shell
Bolt makes the first table top generate corresponding inclination according to the rotation of pitch regulation bolt, makes the angle between the first table top and the second table top
Corresponding change occurs makes laser be incident upon the center of laser pickoff to adjust laser emitting angle, and the X-ray of X-ray machine goes out at this time
Penetrate the reception X-ray position of position and detector on the same line.
Second part is described below:
Firstly, the interconnecting piece of rotation filtering frame, the laser directive filtering frame for emitting laser calibrator.
Then, the height for adjusting support rod rotates the angle of support rod, the laser directive filtering for emitting laser calibrator
The predetermined position of frame, wherein predetermined position is carried out according to laser calibrator, the X-ray Exit positions of X-ray machine and additional filterings piece
Design, when the laser of laser calibrator transmitting is incident upon the predetermined position of filtering frame, the center of additional filterings piece and X-ray machine
X-ray Exit positions are on the same line.
It is adjusted by above-mentioned two parts, realizes the X-ray Exit positions for making X-ray machine, the additional filterings piece for filtering grafting on frame
Center and the reception X-ray position of detector are on the same line.
Step 160, X-ray machine generates primary x-ray beam.
Specifically, opening the X-ray light pipe of X-ray machine, it is emitted primary x-ray beam.
Step 170, primary x-ray beam pass through additional filterings piece filtration treatment, to lower than first threshold energy ray into
Row filters out.
Wherein, first threshold is determined by selected additional filterings piece, first threshold corresponding to different additional filterings pieces
It is different.
Specifically, additional filterings piece filters out the ray lower than first threshold energy of primary x-ray beam, filter just
The low energy part of beginning ray, and it is unobvious on the influence of the distribution of photons of energetic portions, and power spectrum is hardened, and is improved X-ray and is penetrated
Ability, but it is reduction of photon intensity.
Step 180, detector receives X-ray beam after filtering, and photon deposition passes through electronics device in detector crystal
Electric signal is generated, gamma-spectrometric data is obtained.
Wherein, the gamma-spectrometric data can be the corresponding relationship curve of photon energy and number of photons.
Specifically, filtered X-ray beam injects detector, detector receives the X-ray beam of injection, is detecting
In device, photon is deposited in detector crystal, then electric signal is generated by electronics device, to obtain photon energy
With the corresponding relationship curve of number of photons.
Step 190, the tube voltage radiation quality different with additional filtering acquisition is adjusted.
Wherein, the radiation quality includes average energy, spectral resolution, the first half-value layer and homogeneity coefficient.
Specifically, changing load in the voltage of X-ray light pipe, change the intensity of primary x-ray beam and average energy
Become, repeats above-mentioned steps 110 to step 180.Until complete it is all needed for parameters measurement, obtain different average energies,
Spectral resolution, the first half-value layer and homogeneity coefficient.
The additional filterings piece of different-thickness is replaced, the thickness of additional filterings piece can change the mistake to X-ray low energy part
Filter fly degree, the thickness of additional filterings piece is thicker, and the low energy part filtered out relative to X-ray energetic portions is more, repeats above-mentioned
Step 110 is to step 180.Until completing the measurement of all required parameters, different average energies, spectral resolution, first are obtained
Half-value layer and homogeneity coefficient.
The detection method for radiating source platform is identical as the detection method of above-mentioned X-ray machine platform, repeats no more.
Detection method provided in an embodiment of the present invention based on plateform system, it is easy to operate, plateform system can be reached and wanted
The precision asked, to improve the accuracy of measurement result.
Professional should further appreciate that, described in conjunction with the examples disclosed in the embodiments of the present disclosure
Unit and algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, hard in order to clearly demonstrate
The interchangeability of part and software generally describes each exemplary composition and step according to function in the above description.
These functions are implemented in hardware or software actually, the specific application and design constraint depending on technical solution.
Professional technician can use different methods to achieve the described function each specific application, but this realization
It should not be considered as beyond the scope of the present invention.
The step of method described in conjunction with the examples disclosed in this document or algorithm, can be executed with hardware, processor
The combination of software module or the two is implemented.Software module can be placed in random access memory (RAM), memory, read-only memory
(ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field
In any other form of storage medium well known to interior.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (5)
1. a kind of detection method based on plateform system, which is characterized in that the detection method includes:
X-ray machine platform is arranged on the first guide rail of the system backplane of plateform system；Wherein, X-ray is provided on X-ray machine platform
Machine；
Detector platform is arranged on the second guide rail of system backplane；Wherein, detector is provided on detector platform；
Filtering is set up and is placed between X-ray machine platform and detector platform, filters and is plugged with additional filterings piece on frame；
Control first motor driving X-ray machine platform moves to operating position on the first guide rail；Also, control the second motor driven
Detector platform moves to operating position on the second guide rail；
The position of X-ray machine platform is adjusted, adjustment filtering frame makes the X-ray Exit positions of X-ray machine, filters the additional filter of grafting on frame
Wave plate center and the reception X-ray position of detector are on the same line；
Wherein, the position for adjusting the X-ray machine platform specifically: open the laser calibrator on the X-ray machine platform, send out
Penetrate laser；Wherein, the X-ray beam that the X-ray machine projects is parallel with the exit direction of the laser；Adjust the X-ray machine platform
Lifting device, make the laser pickoff of detector platform described in the laser directive of laser calibrator transmitting；Adjust the X
The pitching platform and turntable of ray machine platform make the laser of the laser calibrator transmitting be incident upon the center of the laser pickoff；
The adjustment filtering frame specifically: rotate the filtering frame, make the laser directive institute of the laser calibrator transmitting
State filtering frame；Wherein, the filtering frame includes support rod and interconnecting piece；Also, the height of the support rod is adjusted, described in rotation
The angle of support rod makes the predetermined position for filtering frame described in the laser directive of laser calibrator transmitting, makes the X-ray of the X-ray machine
The additional filterings piece center of grafting and the reception X-ray position of the detector are the same as always on Exit positions, the filtering frame
On line；
The pitching platform includes the first table top, the second table top and pitch regulation bolt；First table top passes through the pitching tune
Section bolt is set up in the top of second table top；The pitching platform for adjusting X-ray machine platform specifically: rotate the pitching tune
Bolt is saved, first table top is made to generate corresponding inclination according to pitch regulation bolt rotation；
X-ray machine generates primary x-ray beam；
Primary x-ray beam passes through additional filterings piece filtration treatment, filters out to the ray lower than first threshold energy；
Detector receives X-ray beam after filtering, and photon deposition generates electric signal in detector crystal, through electronics device,
Obtain gamma-spectrometric data；Wherein, the gamma-spectrometric data is the corresponding relationship of photon energy and number of photons；
Adjust the tube voltage radiation quality different with additional filtering acquisition；The radiation quality includes average energy, spectral resolution, first
Half-value layer and homogeneity coefficient；Wherein, the adjusting tube voltage specifically: change the primary x-ray beam intensity and average energy
Amount.
2. the detection method according to claim 1 based on plateform system, which is characterized in that described by X-ray machine platform
Before being provided on the first guide rail of the system backplane of the plateform system, the method also includes:
The system backplane is placed in shielded box, cosmic ray is shielded by the shielded box.
3. the detection method according to claim 1 based on plateform system, which is characterized in that the turntable includes rotation
Driving motor, fixed part and rotating disk；The rotating disk is set on the fixed part；
The turntable for adjusting X-ray machine platform specifically: the rotary drive motor receives rotating signal, drives the rotation
Disk rotates on the fixed part.
4. the detection method according to claim 1 based on plateform system, which is characterized in that first guide rail includes solid
Fixed platform, two tracks, the first sliding block and lead screw；Two parallel tracks are set in the fixed platform；The lead screw
It is set among two tracks, and is parallel to two tracks；First sliding block be set on the lead screw and with
The bottom of the X-ray machine platform is connected；
The control first motor driving X-ray machine platform moves to operating position on the first guide rail specifically: first electricity
Machine receives the first displacement signal, and the lead screw is driven to rotate, and drives first sliding block along the guide screw movement to operating position.
5. the detection method according to claim 1 based on plateform system, which is characterized in that described to adjust additional filtering tool
Body are as follows: replacement additional filterings piece.
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| CN106842283A (en) * | 2017-03-15 | 2017-06-13 | 新疆维吾尔自治区计量测试研究院 | X-ray detection system |
| CN108226190B (en) * | 2017-12-17 | 2020-10-16 | 内蒙古航天红岗机械有限公司 | Infrared calibration device of directional X-ray machine |
| CN113031042B (en) * | 2019-12-24 | 2024-01-26 | 清华大学 | Ray calibration device and method |
| CN113484901B (en) * | 2021-06-01 | 2024-06-14 | 北京盛原通达科技有限公司 | Positioning method and device for target instrument detection |
| CN116577364B (en) * | 2023-07-12 | 2023-10-10 | 生态环境部华南环境科学研究所(生态环境部生态环境应急研究所) | Solid waste component analysis device and method based on X-ray fluorescence spectrum |
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